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Originally Posted by JamesCH95
Consider the intent of the 'motors must be connected through controllers' rule. It is there to stop mechanisms from moving when the robot is disabled. It is a safety concern and a game-play concern. Is it dangerous or unfair to allow a cooling fan to remain on when the robot is disabled? No, unless you jam your finger into one, then it stings like crazy. Fans used to cool motor controllers stay on when the robot is disabled, I see no intent in the rules that you prevent a fan from cooling a compressor from running while the robot is disabled.
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I can agree with this first hand. That hand got into the fan and broke a blade off the fan. Miraculously my hand was fine, but stung a little. The new fan has heavy duty blades so we put hard nylon grill on both sides. Now it is noisy.
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FWIW we used a fan hard-wired to the PDB last year with no comments from any inspectors.
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Good points above... yet this. Since the fan is noisy I think I will put it on a relay as I had planned. Whatever we do (or don't), we will get the inspector that makes us do it the opposite way we have done it. If yours is opposite us, and you get passed, we will not tell on you. This has been our way for the last few years (and it has indeed happened), we will be ****ed but stoic.